General licensing policy
Project F does not permit commercial use by default. The reason behind this policy is that we do not want commercial clones of LF2 be everywhere, with potential harm to LF2. The community, however, will enjoy freedom to a very large extent.
But it does not mean that work of Project F cannot be used commercially. We are happy to grant commercial licenses on a per-project basis, provided that the products in concern have significant amount of originality.
Licensing will always be free of charge.
Commercial use generally refers to scenarios which users have to buy the game, or have to pay in order to unlock items or level-up. Ads are permitted.